Question

Based on the concept of the global conveyor belt, what happens to ocean water as it moves from Antarctica to the equator?

It transfers thermal energy to deeper layers of the ocean.
It becomes less dense and rises to the surface.
It transfers thermal energy to the area, warming the equatorial waters.
It becomes more dense and sinks to the ocean bottom.

Answer 1

It becomes less dense and rises to the surface.

Explanation: Cold, dense water formed near Antarctica flows northward as deep currents; as it moves toward the equator it warms, becomes less dense, and upwells to the surface (completing the thermohaline "global conveyor belt").